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Finding the Fourth Proportional to 8,817.04, 12,164.19 and 5,630.45

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Solution

The fourth proportional to 8,817.04, 12,164.19 and 5,630.45 is: 7,767.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,817.04 : 12,164.19 = 5,630.45 : x
  2. Step 2: Convert to fraction form
    8,817.04/12,164.19 = 5,630.45/x
  3. Step 3: Cross multiply
    8,817.04x = 12,164.19 × 5,630.45
  4. Step 4: Simplify right side
    8,817.04x = 68,489,863.59
  5. Step 5: Solve for x
    x = 68,489,863.59/8,817.04
  6. Step 6: Final answer
    x = 7,767.90

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.